This function is to cater for scenarios where an issue is located around the same location with other issues, or the location itself is small and there is insufficient space to place multiple markers.
1. Select Project.
2. Navigate to a unit's issues (See This Article for further details).
3. Select one of the issues.
4. Select 'Join Issue'.
5. Select the other issue.
6. Select 'Yes' at the confirmation pop up box.
7. Select the marker to view the joined issues.